Revision 22 as of 2006-01-23 21:47:49

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What are VServers

The [http://linux-vserver.org Linux VServer Project] provides Linux kernel-based virtual servers running on a single piece of hardware.

VServers are very useful for quickly setting up a set of restricted services for testing or production use.

VServers are not as popular as the similar [http://www.xen-source.com XEN] Hypervisor, but help you a lot, if you have to administrate a large number of servers and services.

While it will take some time until XEN is integrated into Ubuntu, VServers are available now.

Installation

Installation is quite simple - you need:

  • Kernel with VServer patch
  • util-vserver
  • vserver-debiantools

You can install these packages if you add the following lines to your sources.list:

  • breezy 

    deb      http://ubuntu.uni-klu.ac.at/ubuntu.uniklu/  breezy uniklu-vserver
#deb-src http://ubuntu.uni-klu.ac.at/ubuntu.uniklu/  breezy uniklu-vserver

  • dapper 

    deb      http://ubuntu.uni-klu.ac.at/ubuntu.uniklu/  dapper uniklu-vserver
#deb-src http://ubuntu.uni-klu.ac.at/ubuntu.uniklu/  dapper uniklu-vserver

The uniklu archives are signed - if you want get rid of apt-get warnings: {{{$ wget http://ubuntu.uni-klu.ac.at/uniklu-debuild.pub $ sudo apt-key add uniklu-debuild.pub }}}

To install the VServer Kernel and utils enter:

  • breezy 

    # apt-get install linux-image-2.6.12-11-686
# apt-get install util-vserver vserver-debiantools

  • dapper 

    # apt-get install linux-image-2.6.15-14-686
# apt-get install util-vserver vserver-debiantools

You should get the following revisions

  • breezy

    kernel

    -11-2.6.12-11.24vs (one api number higher than the standard kernel)

    util-vserver

    >= 0.30.208-4ubuntu1

    vserver-debiantools

    >= 0.2.5

  • dapper

    kernel

    -14-2.6.15-14.18vs (one api number higher than the standard kernel)

    util-vserver

    >= 0.30.209-2

    vserver-debiantools

    >= 0.2.5

The vserver-debiantools do not work 100% but should help you setting your first vserver quickly - see [http://support.uni-klu.ac.at/VServer Uniklu VServer Info]

The Kernel is the standard Ubuntu Kernel with the Vserver patch applied.

  • breezy: Vserver patch 2.0 for kernel-2.6.12
  • dapper: Vserver patch 2.0.1.2 for kernel-2.6.15

The Kernel and binaries are available for i386 and amd64

It is possible and supported to run 32bit i386 VServers on an amd64 VServer Kernel.

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